Acetylene-gas lamp



"J. S. SHERMAN.

ACETYLENE GAS LAMP.

Patented July 19, 1921.

APPLICATION FILED JAN. 17, HHS.

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1 lie it known that 1, .Jecoe SHERMAN, a citizen of the United: States, residing at Chicago, in the county of Cook and State of. Illinois, have invented certain new and useful. Improvements in Acetylene-Gas Lamps, of whichthe following is a description; j a i I My invention belongsto that general class of gas lamps adapted foruse as a miners lamp, or as awblcycle, automobile, yacht lamp or the like, in which the lamp is composed of two parts, one of which constitutes a water chamberand the other positioned belowthe water chamber is adapted tocontain calcium carbid. :Means are provided to deliver thewater to the carbid, resulting in the generating of acetylene gas, which is thence conducted by a suitable duct to the exterior of the lamp where it is provided with a suitable burner.

The object of my invention is to produce a lamp of;this general character which shall be sim le and economical in its construction and effectual and satisfactoryin its use.

:To this end my invention consists in the novel construction, arrangement and combination ofparts herein shown and describedv and more particularly. pointed out in the drawings.

In: the drawings, wherein like reference characters indicate like" or corresponding parts,

Figure. 1 is a verticalsection of my improved lamp illustrating the preferred form thereof; i

Fig. 2 is a cross section of the water tube, valve-stem and guard on line 2-2 of Fig. 1;

Fig. 3 is an elevation of the preferred form of guard.

Referring to the drawings, 1 represents a water chamber provided with a suitably capped inlet 2, whereby said chamber may be charged. In the preferred construction shown in Fig.1, thispart isprovided with a vertically extending tube 3, having a valve seat formed on the lower. end thereof which depends. fromjthe upper chamber downwardinto the carbidchamber. The tube 3 is provided with openings 4 or equivalent means, by means of which. the water may find entrance therein, and is provided at its lower end with a valve .5 having a laterally extending top face adapted to seat against the tube, and provided with a stem G-Which hcEa'YLENE-eAs LAMP,

Specification of Letters Patent.

Patented July 19, 1921.

Applica tion filed mm 17, 1918.. Serial .No. 212,217.

is screw threaded as at 7 into the top of the water chamber. The numeral 8 desig' nates the carbid chamber, which is constructed" at its upper end with threads 9 adapted to cooperate with corresponding threads 10 formed in the lower or depending part 11 of the Water chamber. The numeral l2 designates a resilient guard or shield which in the preferred construction is formed of wire wound in substantially the formpfa helical spring with its free end tapered down and substantially closed. This guard is preferably soldered or otherwise operatively secured at its upper end to the water chamber or to the water tube 3, so asin operation to form an essential part thereof. It is preferably of a size permitting a slight clearance 12 between the tube 3 and the guard 12 and preventing any interference with the operation of the valve 5. In Fig. 1 the spring 12 is shown slightly extended, so that the spacing between the coils is increased and they are drawn closer to the tube than when in the normal condition of the spring, which latter is illustrated in Figs. 2 and 3. The gas generated in the carbid chamber 8 escapes upward through a filter pad 13' or equivalent part, and thenceto a tube14 and the burner 15.

As thus described the operation is as follows :.-The water chamber 1 is charged with a suitable quantity of water through the capped inlet 2, the valve 5 being closed to prevent the escape of the water through the tube 3. The carbid chamber 8 is supplied with a suitable quantity of carbid and secured in its seat upon the water chamber 1, the free end of the tube 3 protected by its guard 12 being located within the body of the carbid, in such manner, however, that the rotation or movement ofthe valve will be in no way communicated to the carbid. Thus the carbid can in no way come in contact with the said valve, nor with the tube 3, being effectually kept therefrom by the guard 12. The feed of the Water to the carbid is effectively controlled by rotating the stem 6 by means of the screw threaded button 7 or a lever connected thereto, whereby the valve may be opened to the proper extent to regulate the flame bythe sup ly of water, which readily seeps through eupon the upper surface of the valve, and is impinged thereby upon the juxtaposed encompassing portion ofthe guard, whence it rises in the space" 12 between the tube and the guard to quite an extent by capillary action and under the head maintained by thejwater. the'reservoir 1, escaping between the proximate "convolutions otthe guard, which thus has :a distinct distributing function. Due to this cooperation of parts, water isdischarged from between the convolutions of the spring 7 directly against the carbid in the upper part of the receptacle, aswell as against that in thelower part, with the result that the slaking of the in the lower portion of the receptacle about and below the discharge end of the Water tube. In operations of the device it has been observed that when the valve is opened,

' water issues from between the coils throughout the extent of: the guard substantially coincidently. \Vhen the carbid. is fully spent, the-carbid chamber 8 is removed and the spent carbidis discharged, when-the operation-maybe repeated. Any portion of the carbid adhering to the guard 12 is readily released by reason-0f the flexibility of the guard, it only-being necessary to grasp the tree end of the same and either bend it laterally; slightly or elongate it slightly, and upon release,-it will spring back to its normal position; In addition'to this, practical use shows that'when round wire is used in the'guard, the slaked carbid does not readily adhere "thereto, and the water passing through between the contiguous wires serves to operatively 'free the guard from the carbid. In the operation of inserting the tube into a container of fresh carbid, it and the valve are protected by the guard, and the guard itselfis supported by the tube throughout substantially its entire length, so that itwill not be deflected from the line of thrustand interfere with progress of the tube into 1 the carbid. V

Having thus described my invention, what I claim as new and desireto secure by Letters Patent is 1-- 1. In a carbid lamp the combination with a water receptacle and'a carbid receptacle of awater discharge tube communicating with the former and extending into the latter, a guard mounted onsaid tube and extending substantially the entire length thereof and: below the lower terminus thereof, said: guard encompassing and being spaced from'the wall of the-tube to afford a channel fortthe progress ofthe water up said said valve having a laterally extending surface arranged to conduct water from the tube toward the guard and having its periphery arranged in juxtaposition to the guard so as to impinge water thereon.

2. In an acetylene generating apparatus, the combination with a water container and a carbid container of a water discharge tube communicating with the former and extending a substantial distance into the latter, a flexible guard encompassing the tube and provided with lateral water passages, said guard extending throughout substantially the entire extent of the tube within the carbid container and depending below the lower end of the tube, said guard normally being spaced from the wall of the tube to afford a channel for the passage of water upwardly between the two, a valve operably arranged within the guard to close against the and of the tube and having a face extending transversely thereof in position to receive water from the tube, the periphery of said valve-terminating adjacent the encompassing portion of the guard in position to impinge water thereagainst adjacent the end of the tube, and means for operating the valve.

3. In an acetylene generating apparatus, the combinationwith a water container and a carbid container of a water discharge tube communicating with the former and extending a substantial distance into the latter, an extensible guard encompassing the tube and provided with lateral water passages, said guard extending throughout substantially the entire extent of the tube within the carbid container and depending below the lower end of the tube, said guard normally being spaced from the wall of the tube to afford a channel for the passage of water upwardly between the two, a valve within the guard extending below the lower end of the tube and having a face extending transversely thereof in position to receive water from the tube, the periphery of said valve terminating adjacent the encompassing portion of the guard in position to impinge water thereagainst adjacent the end of the tube, and means for operating the valve.

4. In an acetylene gas generator, the combination of a water container, a carbid container, a water discharge tube commnnicating with the former and extending a substantial distance into the latter, av helical spring encompassing the tube for substantially its entire extent within the carbid container and depending below the discharge end of the tube, said spring normally being spaced from the wall of the tube to afl'ord a channel for upward progress of water therebetween, and a water control member disposed Within the guard and cooperating means for adjusting said water control mem- 10 with the lower portion of the tube and exber.

tending transversely thereof in position to In testimony whereof, I have hereunto receive water therefrom and direct it toward signed my name in the presence of two subthe encompassing portion of the spring, the scribing witnesses.

periphery of said water control member JACOB S. SHERMAN. lying adjacent encompassing coils of the Witnesses: spring in position to impinge Water thereon JoHN W. HILL,

adjacent the lower end of the tube, and CHARLES I. Cone. 

